package os;

import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 123
 * Date: 2023-05-10
 * Time: 9:02
 */
public class BookOs {
 public static void menu(){
     System.out.println("---------------------------------");
     System.out.println("--请选择：1->用户系统  2->管理员系统--");
     System.out.println("---------------------------------");
 }

    public static void main(String[] args) {
     Scanner scan = new Scanner(System.in);
     while(true){
         menu();




     }


    }



}
